Samsung Service SA - Appliance Terrible Service

I contacted Samsung Services SA today at 16H18 to request where I can purchase a Thermofan for my 3 year old Samsung oven NV75K5541RS, only to find out that Samsung does not have a spare parts shop. This is absolutely ludicrous to hear from the WhatsApp consultant Trecia. Whats the point in buying a Samsung product, if you cannot buy spare parts for your product when you need it!!!! All I wanted is, for the consultant to provide information where the necessary defective part can be sourced from, to get told that I have to send it to Samsung to have it fixed, which is literally a waste of my precious time and money, as the defective thermofan needs to be replaced which is only a 5 minute job...